Q20. If x is so small that its square and higher powers can be neglected, then the expression √(4+x) / (1-x) is approximately equal to:Mathematics — NUST Mock 4 — Question 20 of 200A. 2 + 9x/4B. 2 + 5x/4C. 2 - 7x/4D. 2 + x/4Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →